TY  - BOOK
AU  - Niven,David
TI  - The 100 simple secrets of the best half of life: what scientists have learned and how you can use it 
SN  - 0060564733 (pbk.)
U1  - 158.10844 
PY  - 2005///
CY  - [San Francisco]
PB  - HarperSanFrancisco
KW  - Middle-aged persons
KW  - Psychology
KW  - Conduct of life
KW  - Older people
KW  - Happiness
KW  - Optimism
N1  - Includes bibliographical references (p. 201-209)
ER  -